niese



(No Model.) 2 Sheets-Sheet 1.

H. E. NiEs & G. DINKEL. APPARATUS FOR COOLING OR DRYING GRANULAR MATERIALS. N0. 278,356. 4 Patented May 29,1883.

WITNESSES, INVENTORS, Wham. 1

N4 PEI'ERS, Phulo-Lilhagrapher. wnhinglon. D. C.

(No Model.)

H. E. NIESE & e. DINKEL. APPARATUS FOR COOLING 0R DRYING GRANULAR MATERIALS.

2 Sheets-Sheet 2..

Patented May 29,188?

510 o 0530 o G o 0:10 o l! 0 o ogo o o o 0H0 0 ti FIGS.

WITNESSES \NVENT RS N, FETERS. Fhcln-Lilhographer. Waahinglon. n, c.

UNITED STATES 1 PATENT OFFICE. v

HENRY E. NIEsE AND GEORGE DINKEL, or JERSEY crrY, NEW JERSEY, ,AssIeNoRs TO THE F. o. MATTEIIESSEN & WIEGHERS sUeA REFINING COMPANY, OF SAME PLACE.

v APPARATUS FOR COOLING OR DRYING GRANULARIYMATERIALS.

SPECIFICATION forming part of Letters Patent No. 278,356, dated May 29, 1883.

I Application filed March 10, 1883. (No model.)-

3 l Materials, of which the following is a specification.

Our improved apparatus isespecially useful for cooling the animal charcoal used ,in sugarrefining It will also befound useful for em-.

. ployment in cases where it is desired to treat masses of any granular material'with aeriform fluid, whether hot or cold. I a 1 The carrying out of our invention involves 1 the establishment of the usualtransverse airspaces inthe'mass of granular material contained'ih the treating-chamber by the employa mentof superposed series of equidistantly-arranged inverted v-shapedtroughs, the endsof 2 1 which are respectively joined to the opposite side walls'ofthe treatin'gachamberinimmediate proximity to holes i i-the side walls communicating with exterior air-chambers or jacketed spaces which are connected witha blower or compressor, bywhich the aeriform treatingfluid of any required temperature is suppliedunder the desired pressure.

The first part of our invention consists in the combination, with a treating-chambersuch as 1 1 0 described, of an automatic discharge-valve.

, l The second feature of our-inventionconsists in automaticallyoperating the induction-valve of an engine or. motor for opening the discharge-valveof the treating-chamber by means i e 5 of the overflow of granular material from the upperlpart of the treating-chamber.

The drawings illustrating our invention are as follows:

Figure l is a central vertical section, of our 40 treating-chamber, showing the motor for operatingthe, discharge-valve and a conventional representation of a compressor for supplying s the aeriform treating-fluid. Fig. 2 is a transverse section of the treating-chamber, taken 5, through the line was on Fig. 1. Fig. 3is a vertical section, taken through the line 3 1 on Fig. 1, in a plane at right angles with theplane of the section representedin Fig. 1. Fig.4 is a horizontal section,taken through the line 2 z so on Fig. 1,with a portion of the perforated bottom of the tank removed to show the perforations in the discharge-valve.

The apparatus represented in the drawings consists of an upright tank or treating-chamher, A, having a pyramidal top, a, in the center of which is the chute B, through which the granular material to be treatedis introduced into the tank. A flue, O, is also inserted in the top of the tank, and is, if desired, carried vto'a dust-chamber for the collection of any dust carried. out through the flue 0. At its lower end the chute B is provided with the weighted throttle-valve b, which, when the feeding operation ceases, is rocked upward ,against its seatbbythe counterbalance'weigbt 6 b and thus prevents the dust from being blown through the chute B. On two sides the g tank A is jacketed to formthe air-chambers D 1D, which are connected by the branchpipes (Z d and main supply-pipe d with the.:blower or compressor d for supplying the chambers D D with the aeriform treating-fluid under suitable pressure. The aeriform treating-fluid is injected from the chambers D D through the series of holes E in the sidewalls of the tank A into the opposite ends of the transverse spaces 0, formed in the mass of granular material under treatment by means of the superposed series of inverted-V-shaped troughs F,

' the ends of which are joined to the inner side walls of the tank A in close proximity to the holes E,respectively. The members of each horizontal series of troughs F are equidistan tl y arranged in the same plane in vertical'alignment, respectively, with the spaces between S 5 the troughs of the adjoining series, and these spaces are of sufficient width to permit the granular material under treatment to make its way downward by its own gravity until the mass of granulated material is supportedup go on the perforated bottom G of the tank. The usual correspondingly-perforated horizontal slide-valve, G, is placed upon the anti-friction rollers g 9, immediately beneath the perforated bottom G. The perforated valve G is operated 9 5 l by a piston which reciprocates in a cylinder, H, provided witha valve-chest, h, containing a balanced valve, the stem h of which is loosely connected to, the vertical leg k of the pivoted T -lever k This valveis reciprocated :oo

in one direction by the counterbalance-weight h, hung on one arm'of the pivoted T-lever 71. and in the other direction by the preponderating weight of granular material filling the tunnel-shaped receptacle I, suspended upon the other arm of the T-lever W. The filling of the receptacle I is effected by the overflow of the granular material from the upper part of the tank A into the .chute t, which conducts it into the flaring upper end, I, ofthe receptacle I, from which the material escapes slowly through the comparatively small tube 1 and falls into the chute J, which conducts it into the main chute K. When the tank A is nearly full the granular material overflows into the chute t, and is conducted into the receptacle I faster than it can escape therefrom through the-tube l and when full the weight of the receptacle I and its contents preponderates over the weight it, carried upon theopposite end of the T-lever ]t3, and thus so swings the leg h and actuates the balanced valve as to let the steam, water, or compressed air by which the motor is operated into the end H of the cylinder H, wherein by its expansion it retracts the piston-rod L, to the outer end of which the slide-valve G is connected. By the retraction of the piston-rod L the valve G is pulled outward until the perforations in it are brought into alignment with the perforations in the bottom G of the tank, thus allowing the contents of the tank to escape into the mainchute K. As the granular material in the tank A falls the overflow into the chute t ceases. By the escape of the granular material from the receptacle I through the tube 1 I the weight, acting in opposition to the weight h, diminishes so that the weight h preponderates and swings the leg 71. in the opposite direction, thus opening the induction-port of the end H of the cylinder H, and opening the eduction-port ofthe end H of the cylinder H,

thereby reversing the motion of. the piston and pushing back the perforated valve G,

and stopping the discharge of the granular.

material from the tank.

When employed for the purpose of'cooling animal charcoal the blower or compressor (1 may be made to draw its supply of air from any suitable cooling-chamber, and itwill of 50.

course be understood that the air or other aeriform treating-fluid may be injected into the tank A under any desired degree of pressure.

It will also be understood that the number of series of transverse air-spaces formed in the mass of granular material under treatment by means of the superposed series of inverted troughs and the holes in the treating-chamber may be varied as desired.

ing-fluid into such air-spaces, substantially as v and for the purpose set forth.

2. The tank A, provided with the chute i, and the valve G, connected with the pistonrod L, and the cylinder H, provided with the valve-chest h, containing a suitable induction and eduction valve connected with the pivoted valve-lever 7L3, carrying at one end the.

weight It, and at the other end the tunnelshaped receptacleI, arranged and operating substantially as and e .H. E. NIESE.

. GEORGE DINKEL, "Witnesses; L THER SELMER,

.' .GE RGE M. EvARTs.

for the'purpose set forth." 

